Power block



FIG. 1 is a top, front, left perspective view of a power block showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a rear elevation thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevation thereof; the right side elevation being a mirror image of the left side; and,

FIG. 7 is similar to FIG. 4 but shows a second embodiment of the design; the appearance of the second embodiment is the same as the first except that two coaxial connectors replace the telephone jack openings of the first embodiment. 

The ornamental design for power block, as shown and described. 